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<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>

		<p id="p1">书名：岛上书店</p>
		<input type="button" value="换换名字" id="change" />
		<script>
			
				change.onclick=function(){
					p1.innerHTML="现象级全球畅销书";
				}
			
		</script>
	</body>
</html>
